s390/fpu: signals vs. floating point control register

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commit 1b17cb796f upstream.

git commit 904818e2f2
"s390/kernel: introduce fpu-internal.h with fpu helper functions"
introduced the fpregs_store / fp_regs_load helper. These function
fail to save and restore the floating pointer control registers.

The effect is that the FPC is not correctly handled on signal
delivery and signal return.

Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

...

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Martin Schwidefsky 2016-02-19 15:29:05 +01:00 • committed by Greg Kroah-Hartman

parent d70325085f

commit caa2a2b56b

1 changed files with 2 additions and 0 deletions

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arch/s390/include/asm/fpu/internal.h

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